硫酸法钛白粉生产工艺中的偏钛酸回收新技术研究

A NEW TECHNOLOGY FOR RECOVERY OF H_2TiO_3 FROM TiO_2 PRODUCTION PROCESS BY SULFURIC ACID

本文采用无机分离膜技术对硫酸法钛白粉生产产生的废酸、废水中的偏钛酸回收进行了实验研究，结果表明，采用粒子烧结生产的α—Ａｌ２Ｏ３陶瓷膜处理废酸、废水具有性能稳定、再生容易、操作成本低等突出优点，既解决了环保问题，又提高了钛白粉的收率，具有明显的社会、经济效益。

A new technology was developed for recovery of H2TiO3 from TiO2 production process by inorganic microfiltration membrane. The result showed that it is feasible for the recovery of TiO2from the waste acids and water. The flux of membranes maintained at 300～500 L/m2·h·bar.